diff --git a/backend/requirements.txt b/backend/requirements.txt
index 8b0e478..2a329a5 100644
--- a/backend/requirements.txt
+++ b/backend/requirements.txt
@@ -1,5 +1,5 @@
 APScheduler==3.6.3
-Babel==2.7.0
+Babel==2.9.1
 blinker==1.4
 bottle==0.12.19
 certifi==2019.9.11
diff --git a/backend/requirements_mac.txt b/backend/requirements_mac.txt
index 47f4974..d60dfb2 100644
--- a/backend/requirements_mac.txt
+++ b/backend/requirements_mac.txt
@@ -3,7 +3,7 @@ nose==1.3.7
 coverage==5.4
 wheel==0.36.2
 APScheduler==3.6.3
-Babel==2.7.0
+Babel==2.9.1
 blinker==1.4
 bottle==0.12.19
 certifi==2019.9.11
diff --git a/backend/requirements_win.txt b/backend/requirements_win.txt
index 633ee8c..1a81950 100644
--- a/backend/requirements_win.txt
+++ b/backend/requirements_win.txt
@@ -1,5 +1,5 @@
 APScheduler==3.6.3
-Babel==2.7.0
+Babel==2.9.1
 blinker==1.4
 bottle==0.12.19
 certifi==2019.9.11